Whenever input is required, the data collection will pause and a dialog box with the appropriate request is displayed (Figure 7).
每当需要输入时，数据收集将暂停，并显示一个带有相应请求的对话框（图 7）。
This input data element obtained from the request attribute consists of multiple parts.
从请求属性获取的这个输入数据元素由多个部分组成。
Typically the service is either invoked with this input as a parameter of the service request (by value) or the service gathers the data from one or more specified source (by reference).
通常使用此输入作为服务请求的参数调用服务(按值)，或服务从一个或多个指定的源收集数据(按引用)。
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